I got a good deal on a comforpedic foam mattress at Costco 5 years ago or so, around $400 or so for a Queen from what I recall. Not on sale per se just a promotion. They sold them annually for a couple years after that but dropped the comforpedic name. Still going great, only downside if you want to call it that is that I dream pretty well every night now and never used to. I was hesitant to try these over a spring but won’t go back now.